JP2008123963A - Wiring appliance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring appliance to which a cable 21 can easily and surely be connected without any exclusive tool. <P>SOLUTION: The cable 21, in which a wire 22 is covered with a coating 23, is inserted into the cable insertion hole 18 of a case 16. The operation part 59 of a pressing member 32 is operated from the outside of the case 16 to displace the pressing member 32. By displacing the pressing member 32, the distal end 45a of the connection plate part 45 of a terminal 31 is pressed toward a substrate part 44 while clamping the cable 21 with the substrate part 44. At the time, the coating 23 of the cable 21 is cut at a cutting part 54 at the distal end 45a of the connection plate part 45 and the terminal 31 and the wire 22 are electrically connected. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wiring device for connecting cables.

  Conventionally, for example, in a wall wiring type communication wiring device such as a modular jack or a LAN device, a terminal structure for connecting a cable wired in the wall surface is provided on the back side of the wiring device. In addition, since the outer dimensions of the wiring apparatus are limited, the terminal structure for connecting the cable is small, and a large number of terminals are arranged in a compact manner at small intervals.

  In such a terminal structure of a wiring instrument for communication, a terminal having a slit is used, and the cable is cut into the slit of the terminal by pushing the cable into the slit of the terminal so that the cable conductor and the terminal are electrically connected. (For example, refer to Patent Document 1).

  However, since a large number of terminals are compactly arranged at small intervals, it is difficult to push the cable directly into the slits of the terminals in actual work, and it is necessary to use a dedicated jig.

Also, as a terminal, in general, by inserting a conductive wire that has been stripped and exposed at the end of the cable into the insertion hole of the case, the conductive wire is sandwiched by the spring property of the terminal arranged in the case, and is conducted. There is a quick-connect terminal designed to do this.
JP-A-10-223327 (page 3-4, FIG. 1)

  However, in the conventional communication wiring device, since a large number of terminals are arranged in a compact manner with a small interval, a dedicated jig is required to connect the cable. Even if it is used, it is difficult to push the cable into the slit of the small terminal, and there is a possibility that the cable may not be securely connected.

  Also, in general quick-connect terminals, it is necessary to strip the cable sheath to expose the conductors, and it is troublesome to strip the sheath of many cables one by one in a communication wiring device having a large number of cables. This is an operation.

  This invention is made | formed in view of such a point, and it aims at providing the wiring tool which can connect a cable easily and reliably without a dedicated jig | tool.

  The wiring device according to claim 1, a case having a cable insertion hole into which a cable covering a conductive wire is inserted, and a storage portion through which the cable insertion hole communicates; cable insertion facing the cable insertion hole in the case storage portion A board part disposed along one side of the area, a connection plate bent from the board part to the other side of the cable insertion area and bent so that the tip faces the board part of the one side from the other side of the cable insertion area A terminal having a cut portion having a substantially V-shaped cross section that is provided at the tip of the connection plate portion and is cut into the cable sheath and connected to the conducting wire; and an engagement portion that engages with the connection plate portion of the terminal in the housing portion of the case The cable is inserted between the non-connection position where the tip of the terminal connecting plate part is separated from the board part so that the cable can be inserted between the terminal part and the board part, and the tip of the terminal connecting plate part is sandwiched between the board part. Board part Main section to be displaced between a hold down connection position towards, and be operated from the outside of the case and the pressing member having an operating portion for displacing the body portion; those which comprises a.

  The wiring apparatus includes, for example, a communication wiring apparatus such as a modular jack or a LAN device, and may be a wall-surface-embedded type that is attached to a wiring box or the like installed on the wall surface using a support.

  The conductor of the cable may be a single wire or a stranded wire.

  The case is formed of, for example, an insulating resin material, and may be formed integrally with the wiring device body, or may be formed separately from the wiring device body.

  The terminal is preferably formed of, for example, a leaf spring having electrical conductivity and spring property, and the connection plate portion is preferably bent from the end portion side of the substrate portion facing the cable insertion hole. When the connection plate portion is bent from the end portion side of the substrate portion facing the cable insertion hole, an insertion hole through which the cable is inserted is formed in the connection plate portion.

  The pressing member is formed of, for example, an insulating resin material, and is disposed in the case so that the main body portion is displaced by turning or sliding. At the non-connection position of the main body, the tip of the terminal connection plate is displaced so as to be separated from the board so that the cable can be inserted between the terminal and the terminal. Even if the connecting plate portion is forcibly displaced, it may be displaced by the spring property of the connecting plate portion of the terminal. If the operation unit can be operated from the outside, the operation unit may protrude from the case or may be positioned inside the case. When the main body is displaced to the connection position, the operation unit is detachably locked to the case. You may make it do.

  And, by inserting the cable covering the conducting wire with the cover into the cable insertion hole of the case, and operating the operation part of the pressing member from the outside of the case to displace the main body part of the pressing member from the non-connection position to the connection position, Hold the tip of the terminal connection plate toward the board so that the cable is sandwiched between the terminal and the board. Connect to.

  The wiring device according to claim 2 is the wiring device according to claim 1, wherein notches are formed on both sides of the board portion which is the tip of the connection plate portion of the terminal and opposite the tip portions on both sides of the cut portion. Is.

  When the cable is connected, the notches formed on both sides of the terminal board portion of the terminal even when the tip of the terminal connecting plate portion and the tip portions on both sides of the cutout portion are displaced to the surface position of the board portion. The tip of the connecting plate portion does not come into contact with the portion, that is, the tip of the connecting plate portion does not come into contact with the surface of the substrate portion and the displacement of the connecting plate portion is not limited.

  According to the wiring device according to claim 1, the cable covering the conductive wire is inserted into the cable insertion hole of the case, and the operation portion of the pressing member is operated from the outside of the case so that the body portion of the pressing member is not connected. By moving the terminal to the connection position, the tip of the terminal connection plate is pressed toward the board so that the cable is sandwiched between the terminal and the cable, and the cable is covered with the notch at the tip of the connection plate. Since the notch and the terminal can be electrically connected to the conductor, there is no need for a dedicated jig, the cable can be easily connected, and the end of the connection plate is pressed to the conductor of the cable. The terminal can be securely connected to the conductor of the cable.

  According to the wiring device according to claim 2, in addition to the effect of the wiring device according to claim 1, at the time of connection of the cable, the distal ends of the connection plate portion of the terminal and on both sides of the cut portion are the substrate portion. Even when it is displaced to the surface position of the terminal, the tip of the connection plate part does not abut due to the notches formed on both sides of the board part of the terminal, that is, the tip of the connection plate part abuts the surface of the substrate part. Thus, the displacement of the connection plate portion is not limited, and the cut portion at the tip of the connection plate portion is surely cut into the cable sheath, so that the connection between the terminal and the cable conductor can be ensured.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view in which a holding member of a wiring device is cut away at a non-connection position, FIG. 2 is a perspective view in which a holding member of the wiring device is cut out in a connection position, and FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, FIG. 5 is a cross-sectional view in which the press member of the wiring device is in the connected position, and FIG. 6 is a cross-sectional view taken along the line B-- in FIG. FIG. 7 is a perspective view of the wiring device, and FIG. 8 is a rear view of the wiring device.

  As shown in FIGS. 7 and 8, the wiring device 11 is a wall-embedded communication wiring device such as a modular jack or a LAN device, and has a wiring device body 12. A support 13 for attaching to a wiring box installed on the wall surface is provided integrally or separately.

  A connector 14 for connecting a modular cable or a LAN cable is disposed on the front surface of the wiring fixture body 12.

  A terminal unit 15 is disposed on the upper and lower sides of the back surface of the wiring device body 12. The terminal unit 15 has a case 16 that is detachably attached to the wiring fixture body 12, and in this case 16, a plurality of terminal portions 17 to which a plurality of indoor wiring cables wired in the wall surface are connected are arranged. ing. A cable insertion hole 18 for inserting a cable corresponding to the position of each terminal portion 17 is provided on the outer surface 16a of the case 16 corresponding to the back surface of the wiring device body 12 and facing the cable insertion direction. An operation portion region 19 for operating the terminal portion 17 corresponding to the position of each terminal portion 17 on the outer surface 16b of the case 16 corresponding to the upper surface or the lower surface of the wiring device body 12 and parallel to the cable insertion direction. Is provided.

  Next, as shown in FIG. 1 to FIG. 6, the cable 21 connected to the terminal portion 17 is a covered electric wire in which a conductive wire 22 that is a single wire is covered with a covering 23 having an insulating property.

  The terminal portion 17 includes a case 16, a terminal 31 accommodated in the case 16, and a pressing member 32 that displaces the terminal 31.

  The case 16 is made of an insulating resin material, and the case 16 is connected to the cable insertion hole 18 at the position of each terminal portion 17 to store the terminal 31 and the holding member 32. An opening 36 is formed on the opposite surface side of the outer surface 16a of the case 16 in which the cable insertion hole 18 is formed, and the terminal 31 and the pressing member 32 are attached to and detached from the storage portion 35 through the opening 36. The

  An arcuate surface-like rotation that rotatably supports the presser member 32 in the side region of the cable insertion region 35a facing the cable insertion hole 18 on the inner surface where the cable insertion hole 18 in the housing portion 35 of the case 16 opens. A pressing member support portion 38 having a support surface 37 is formed.

  A slit 39 is formed on the outer surface 16b of the case 16 parallel to the cable insertion direction and facing the operation unit region 19 from the end position of the rotation support surface 37 to the opening 36, and the case 16 is formed on both sides of the slit 39. A locking portion 40 having a substantially L-shaped cross section is formed so as to be opposed to each other at a position close to the opening 36 side, and a locking groove 41 is formed between the locking portions 40 on both sides.

  Further, the terminal 31 is a metal leaf spring material having electrical conductivity and spring property, and is arranged in a state of contacting along the inner wall surface 16c on one side of the cable insertion area 35a in the housing portion 35 of the case 16. There is a board part 44, a connection plate part 45 bent from the end of the board part 44 facing the cable insertion hole 18, and a regulation plate part 46 bent from the end of the board part 44 opposite to the cable insertion hole 18. is doing. The terminal 31 is formed in a width that is held between the inner wall surfaces on both sides of the storage unit 35 in a state of being stored in the storage unit 35, and the inner surface of the case 16 and the inner surface of the storage unit 35 where the cable insertion hole 18 is opened. It is formed in a length that is held between the member disposed in the opening 36. The member disposed in the opening 36 of the case 16 is a part of the wiring device body 12 when the case 16 is attached to the wiring device body 12.

  The board portion 44 is formed long along the cable insertion area 35a, and cutout portions 47 are formed on both sides of the connection plate portion 45 facing the tip 45a.

The connection plate 45 is bent from the end of the board 44 facing the cable insertion hole 18 to the other side of the cable insertion area 35a, and the tip 45a faces the board 44 on one side from the other side of the cable insertion area 35a. It is bent like this. That is, the connecting plate portion 45 is a bent portion 48 that is bent from the end facing the cable insertion hole 18 of the substrate portion 44 toward the other side of the cable insertion region 35a, and the substrate portion 44 from the tip of the bent portion 48. Engaging plate portion 49 projecting linearly in an oblique direction away from the bending plate 50, a bent portion 50 bent from the front end of the engaging plate portion 49 toward the substrate portion 44, and a front end of the bent portion 50 A connecting portion 51 that protrudes toward the substrate portion 44 is provided. The bent portion 48 is formed with an insertion hole 52 that allows the insertion of the cable 21 against the cable insertion hole 18, the engagement plate portion 49 is formed with an engagement hole 53, and the distal end of the connection portion 51 is formed. A cut portion 54 having a substantially V-shaped cross section that can be connected to the conductor 22 by cutting the sheath 23 of the cable 21 is formed. The notch portions 47 on both sides of the board portion 44 are formed at positions where the tip portions 45a of the connection plate portion 45 of the terminal 31 are opposed to the tip portions on both sides of the notch portion 54. From the end opposite to the cable insertion hole 18, the other end of the cable insertion area 35 a is bent in a substantially U shape, and its tip is formed so as not to contact the connecting plate portion 45.

  The pressing member 32 is formed of an insulating resin material, and includes a main body portion 57, an engaging portion 58 that engages with the terminal 31, and an operating portion 59 that operates the pressing member 32.

  The main body 57 is formed with an arcuate peripheral surface portion 60 that is rotatably engaged with the arcuate rotation support surface 37 in the housing portion 35 of the case 16.

  The engaging portion 58 is formed with an engaging surface 61 that allows a part of the peripheral surface portion 60 of the main body portion 57 to be linear and engage with one surface of the engaging plate portion 49 of the terminal 31. A substantially L-shaped engagement piece 62 projects from 61. The engagement piece portion 62 is inserted into the engagement hole 53 of the engagement plate portion 49 to be engageable with the other surface of the engagement plate portion 49, and holds the engagement plate portion 49 between the engagement surfaces 61. A holding groove 63 is formed.

  The operation portion 59 is formed with a lever portion 64 that protrudes from the peripheral surface portion 60 of the main body portion 57 and is movably inserted through the slit 39 of the case 16 and protrudes outward from the outer surface 16b of the case 16. A lever operating portion 65 is formed at the tip of the lever portion 64 so as to be detachably engageable with a locking groove 41 between the locking portions 40 on both sides of the case 16.

  Then, the holding member 32 rotates the peripheral surface portion 60 of the main body portion 57 along the arcuate rotation support surface 37 of the case 16 so that the tip 45a of the connection plate portion 45 of the terminal 31 is connected to the substrate portion 44. To the board part 44 so that the cable 21 is sandwiched between the non-connection position where the cable 21 can be inserted between the board part 44 and the connection part 45 of the terminal 31 and the tip 45a of the connection plate part 45 of the terminal 31. It is displaced between the connection position where it is pressed toward.

  Next, the operation of the present embodiment will be described.

  In the terminal unit 15, the terminal 31 and the pressing member 32 are combined and stored in each storage portion 35 of the case 16, and the terminal unit 15 is attached to the wiring device main body 12.

  The terminal 31 in the storage part 35 is held between the inner wall surfaces on both sides of the storage part 35, and the wiring device main body is disposed on the inner surface where the cable insertion hole 18 of the storage part 35 opens and the opening 36 of the case 16 It is held between the 12 side members. Further, the presser member 32 in the storage portion 35 has the peripheral surface portion 60 of the main body portion 57 engaged with the arcuate rotation support surface 37 of the case 16, and the spring of the connection plate portion 45 of the terminal 31 in the engagement direction. It is pressed by sex. Therefore, the terminal 31 and the pressing member 32 are held in the case 16 by the interaction caused by the terminal 31 and the pressing member 32 being combined and stored in the storage portion 35.

  As shown in FIGS. 1, 3, and 4, in a state before the cable 21 is connected, the holding member 32 is in the non-connection position, and the tip 45 a of the connection plate portion 45 of the terminal 31 is connected to the substrate portion 44. The cable 21 is separated from the board portion 44 so as to allow the insertion of the cable 21 therebetween. The state of the terminal 31 and the pressing member 32 is held by the spring action of the connecting plate portion 45.

  The operation portion 59 of the pressing member 32 protrudes from the outer surface 16b of the case 16 through the slit 39, and is disposed at a position away from the engagement groove 41 of the locking portion 40.

  Therefore, when the cable 21 is connected to the terminal portion 17, the cable 21 inserted into the cable insertion hole 18 of the case 16 passes between the board portion 44 of the terminal 31 and the connection plate portion 45 through the insertion hole 52 of the terminal 31. Can be inserted.

  The insertion of the cable 21 inserted into the cable insertion hole 18 of the case 16 is restricted when the tip of the cable 21 comes into contact with the restriction plate portion 46. Therefore, if the cable 21 is inserted until the insertion is restricted, the cable 21 is inserted to a certain insertion position, and the cable 21 can be reliably connected to the terminal 31.

  As shown in FIGS. 2, 5, and 6, after inserting the cable 21, the operation portion 59 of the presser member 32 is pushed in the same direction as the cable insertion direction, whereby the peripheral surface portion of the main body portion 57. 60 is rotated along the arcuate rotation support surface 37 of the case 16, and the presser member 32 is displaced from the non-connection position to the connection position. Even if the operation portion 59 of the pressing member 32 is arranged in a compact manner with a plurality of terminal portions 17 arranged at small intervals, for example, the tip of a worker's toe or driver, the tip of a ballpoint pen, the tip of a thin stick, Or it can be operated at the corner of a ruler, etc., and no dedicated jig is required.

  As a result, the tip 45a of the connection plate portion 45 of the terminal 31 is pressed toward the substrate portion 44 while sandwiching the cable 21 between the substrate portion 44 and the engaging portion 58 of the holding member 32.

  At this time, a cut portion 54 having a substantially V-shaped cross section at the tip 45 a of the connection plate portion 45 engages with the cable 21, and the cover 23 of the cable 21 is cut with the cut portion 54 to be electrically connected to the conductor 22.

  The lever operating portion 65 of the operating portion 59 of the pressing member 32 displaced to the connecting position engages in the locking grooves 41 of the locking portions 40 on both sides of the case 16, and holds the pressing member 32 at the connecting position.

  In this way, the cable 21 having the conductor 22 covered with the covering 23 is inserted into the cable insertion hole 18 of the case 16, and the operation part 59 of the presser member 32 is operated from the outside of the case 16 so that the main body part 57 of the presser member 32 is moved. By displacing from the non-connection position to the connection position, the tip 45a of the connection plate portion 45 of the terminal 31 is pressed toward the substrate portion 44 so as to sandwich the cable 21 between the connection plate portion 44 and the connection plate portion 45. Since the covering 23 of the cable 21 can be cut by the cut portion 54 of the tip 45a of the wire and the terminal 31 and the conductor 22 can be electrically connected, the cable 21 can be easily connected without the need for a dedicated jig. In addition, the tip 45a of the connection plate portion 45 is pressed in a state where it is conducted to the conductor 22 of the cable 21, and the terminal 31 can be reliably connected to the conductor 22 of the cable 21.

  Furthermore, even when the cable 21 is connected, even if the tip 45a of the connection plate portion 45 of the terminal 31 and the tip portions on both sides of the cut portion 54 are displaced to the surface position of the substrate portion 44, the board portion of the terminal 31 The front end 45a of the connection plate part 45 does not come into contact with the notches 47 formed on both sides of the 44, that is, the front end 45a of the connection plate part 45 comes into contact with the surface of the substrate part 44 and the displacement of the connection plate part 45 is reduced. Without being restricted, the notch 54 at the tip 45a of the connection plate 45 is surely cut into the sheath 23 of the cable 21, and the connection between the terminal 31 and the conductor 22 of the cable 21 can be ensured.

  When disconnecting the connected cable 21, the lever operating portion 65 of the operating portion 59 of the pressing member 32 is removed from the locking grooves 41 of the locking portions 40 on both sides of the case 16 with respect to the cable insertion direction. By operating in the opposite direction, the peripheral surface portion 60 of the main body portion 57 is rotated along the arcuate rotation support surface 37 of the case 16, and the pressing member 32 is displaced from the connection position to the non-connection position.

  As a result, the tip 45a of the connection plate portion 45 of the terminal 31 is displaced away from the substrate portion 44 and detached from the cable 21. At this time, the connection plate portion 45 can be forcibly displaced by the engagement piece portion 62 of the pressing member 32 and can be reliably removed from the cable 21. Further, since the cable 21 is inserted into the insertion hole 52 of the terminal 31 and the distal end portion of the cable 21 is engaged with the inner side of the substantially U-shaped restriction plate portion 46, the cut portion 54 of the connection plate portion 45 is provided. The cable 21 that is engaged with the connector 21 moves together with the connecting plate portion 45 that is displaced while maintaining the engaged state, so that the cable 21 does not come off from the connecting plate portion 45. The cable 21 can be reliably removed from the cable.

  The state of the pressing member 32 and the terminal 31 displaced to the non-connection position is held by the spring action of the connection plate portion 45. Therefore, the cable 21 can be pulled out from the cable insertion hole 18 of the case 16.

  In the above-described embodiment, the pressing member 32 is rotated and displaced between the non-connection position and the connection position, but may be displaced by other displacement methods such as a slide.

It is the perspective view which notched a part in which the holding member of the wiring tool which shows one embodiment of this invention exists in a non-connecting position. It is the perspective view which notched a part in which the holding member of a wiring device same as the above exists in a connection position. It is sectional drawing in which the holding member of a wiring appliance same as the above exists in a non-connecting position. It is sectional drawing of the AA view of FIG. 3 same as the above. It is sectional drawing in which the holding member of a wiring device same as the above exists in a connection position. It is sectional drawing of the BB view of FIG. 5 same as the above. It is a perspective view of a wiring device same as the above. It is a rear view of a wiring device same as the above.

Explanation of symbols

11 Wiring equipment
16 cases
18 Cable insertion hole
21 Cable
22 conductor
23 Coating
31 terminals
32 Presser member
35 compartment
35a Cable insertion area
44 Board section
45 Connection plate
47 Notch
45a Tip
54 notch
57 Main unit
58 Engagement part
59 Control section

Claims (2)

A case having a cable insertion hole into which a cable covering a conductive wire is inserted, and a storage portion through which the cable insertion hole communicates;
A board part arranged along one side of the cable insertion area facing the cable insertion hole in the housing portion of the case, and is bent from the board part to the other side of the cable insertion area and the tip is located on the one side from the other side of the cable insertion area. A connection plate portion bent to face the substrate portion, a terminal provided at the tip of the connection plate portion and having a cut portion having a substantially V-shaped cross section cut into the cable sheath and connected to the conducting wire;
An engagement portion that engages with the connection plate portion of the terminal in the housing portion of the case, a non-connection position that separates the tip of the connection plate portion of the terminal from the substrate portion so that a cable can be inserted between the terminal portion and the terminal portion. The main body that can be displaced between the connection position where the tip of the connection plate is pressed against the board so that the cable is sandwiched between the board and the board, and the main body that can be operated from the outside of the case is displaced. A presser member having an operating portion;
Wiring equipment characterized by comprising. The wiring device according to claim 1, wherein notches are formed on both sides of the board portion which is the tip of the connection plate portion of the terminal and opposite the tip portions on both sides of the cut portion.

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